Pencil balloon



FIG. 1 is a top plan view of a pencil balloon showing my new design;

FIG. 2 is a side elevational view thereof, all other sides being identical;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a side elevational view of a modified embodiment of the design shown in FIG. 1-3. 

The ornamental design for a pencil balloon, as shown and described. 